| Eichele, Martin (BPB (Briefmarkenprüfstelle Basel)) |
Attest |
Michel |
10 II |
| Holcombe, Peter (Sonstiges) |
Attest |
Stanley Gibbons |
11 b |
| Scheller, Pascal (Sonstiges) |
Attest |
Michel |
11 I K |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Michel |
15 II PFF |
| Eichele, Martin (BPB (Briefmarkenprüfstelle Basel)) |
Attest |
Michel |
17 |
| Holcombe, Peter (Sonstiges) |
Attest |
Stanley Gibbons |
17; 17 a |
| Eichele, Martin (BPB (Briefmarkenprüfstelle Basel)) |
Attest |
Michel |
18 |
| Eichele, Martin (BPB (Briefmarkenprüfstelle Basel)) |
Attest |
Michel |
19 |
